Mercedes Formula 1 boss Toto Wolff and non-executive chairman Niki Lauda have both committed their futures to the team until 2020.
Wolff, who joined Mercedes from Williams in February 2013, will keep his 30% shareholding with the team, while Lauda will retain his 10% stake.
Dieter Zetsche, the chairman and chief executive officer of Mercedes' parent company Daimler, said: "In 2013, we restructured the management of the team with the clear goal of improving our performance.
"Since then, however, the results have exceeded our expectations. A key factor in this success has been the combination of Toto's entrepreneurial skills and Niki's experience.
"Their renewed commitment gives our programme important continuity for the next four years."
Mercedes, as well as the rest of the F1 teams, will begin negotiations with new owners Liberty Media for beyond 2020.